Home / 49,820.39-74,748.40-21,345.38

Finding the Fourth Proportional to 49,820.39, 74,748.40 and 21,345.38

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Solution

The fourth proportional to 49,820.39, 74,748.40 and 21,345.38 is: 32,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,820.39 : 74,748.40 = 21,345.38 : x
  2. Step 2: Convert to fraction form
    49,820.39/74,748.40 = 21,345.38/x
  3. Step 3: Cross multiply
    49,820.39x = 74,748.40 × 21,345.38
  4. Step 4: Simplify right side
    49,820.39x = 1,595,532,855.59
  5. Step 5: Solve for x
    x = 1,595,532,855.59/49,820.39
  6. Step 6: Final answer
    x = 32,025.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.